DOT - A small spot.
ORE - Rock that contains utilitarian materials; primarily a rock containing metals or gems which (at the time of the rock's evaluation and proposal for extraction) are able to be separated from its neighboring minerals and processed at a cost that does not exceed those materials' present-day economic values.
RED - Having red as its colour.
ROD - A straight, round stick, shaft, bar, cane, or staff.
ROT - To suffer decomposition due to biological action, especially by fungi or bacteria.
TOE - Each of the five digits on the end of the foot.
TOT - A small child.
RODE - The line from the vessel to its anchor. Also warp.
TORE - Hard, difficult; wearisome, tedious.
TORT - Tart, sharp.
ROTE - The process of learning or committing something to memory through mechanical repetition, usually by hearing and repeating aloud, often without full attention to comprehension or thought for the meaning.
TOTE - A bag, specifically a tote bag.
TROT - A gait of a four-legged animal between walk and canter, a diagonal gait (in which diagonally opposite pairs of legs move together).
TROD - Simple past of tread.
DOER - Someone who does, performs, or executes; an active person, an agent.
DOTE - To be excessively fond of.
OTTER - Any aquatic or marine carnivorous mammal, member of the family Mustelidae, which also includes weasels, polecats, badgers, and others.
TORTE - A rich, dense cake, typically made with many eggs and relatively little flour (as opposed to a sponge cake or gâteau).
ROTTED - Destroyed or damaged by rot.
TROTTED - Simple past tense and past participle of trot.